The 50mm f/4 shift is a special application lens for perspective control. It features a unique wide field coverage and perspective control shift mechanism in a rotating mount, allowing the photographer to maintain proper linear perspective, identical to PC Shift lenses for 35mm cameras.

50mm f/4 Shift Optical Construction 10 elements / 8 groups Angle of View 70 Degrees Minimum Aperture 32 Diaphragm Manual Minimum Focusing 1� 5.7� / 45cm Maximum Shift 16mm vertically , 13mm horizontally Shift direction Can be shifted in any direction by rotating the lens 360 degrees around the optical axsis. Click stops are provided at 30 degree intervals. Maximum Shift The maximum shift for each 30 degree interval is indicated by colour coded numerals and shift scale. Image circle diameter 97mm Maximum Magnification 0.18X Area Covered 9.1 x 12.2" / 230 x 310 mm Equivalent 35mm Focal 31mm Filter Size 77mm Lens Hood none required Dimensions (L XW) 4.2 x 3.2" / 105.5 x 80mm Weight 1lb. 10oz / 735g J.P. Code 901035 Mamiya Code 307129